Sanford, the front-seat passenger, was wearing a seatbelt. The others killed were riding in the back seat and were not belted in. All were ejected.

The driver of the 1999 four-door Accord, Kristien Rodriguez, 18, of Cape Coral, was seriously injured and airlifted to a hospital, the Florida Highway Patrol said Tuesday. He will likely be charged with the four deaths, the FHP said.

The southbound Honda was speeding when it suddenly crossed the concrete and grass median, FHP Capt. Terry Davis said Tuesday. A witness said the Honda veered out of control when it was cut off in traffic.

The Honda struck a Nissan Altima in the northbound lane and began to overturn, Davis said. Its undercarriage was then hit by a northbound Chrysler Pacifica.

The driver of the Altima and his twin toddler sons were taken to a hospital with minor injuries. Nobody in the Pacifica was hurt.